Roll-weighting apparatus for cotton-spinning machines



Nov. 17,1925- 56 231 R. E. HAYNES I ROLL WEIGHTING APPARATUS FOR COTTON SPINNING MACHINES Filed Oct. 25, 1924 Patented Nov. 17, 1925.

UNITED STATES PATENT OFFICEI ROBERT EDMQN HAYNES, OF GASTONIA, NORTH CAROLINA, ASSIGNOR 0F ONE-HALF TO ARTHUR D. GANTT, OF KINGS MOUNTAIN, NORTH CAROLINA.

ROLL-WEIGHTIN G APPARATUS FOR COTTON-SPINNING MACHINES.

Application filed October 25, 1924. Serial No. 745,927.

To all whom it may concern:

Be it known that '1, ROBERT EDMoN HAYNES, a citizen of the United States, residing at Gastonia, in the county of Gaston and State of North Carolina, have invented certain new and useful Improvements in Roll-Weighting Apparatus for Cotton-Spinning Machines, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to roll weighting 7 apparatus for cotton spinning machines.

As is well known to those familiar with the art, in cotton spinning machines the upper rolls thereof are supported so that they may move downwardly against the lower rolls and are held against these lower rolls 1 by the means of weights. In the construction at present used the weights employed for forcing these rolls downward are so mounted that in order to remove the upper rolls, which is necessary from time to time, the operator must reach beneath the lower rolls of the spinning machine and unhook the weight employed. This is extremely inconvenient, requiring considerable time not only in actually unhooking and re-hooking the weight but in removing from the threads lint and dust which, disturbed by the action of unhooking the. weight, comes torest 'uponthe same. If the operator isv careless, slugs are formed causmg cons1derable trouble 1n thesplnning. Furthermore due to the inconvenient location of these weights they are often dropped to the floor and have to be re-hung.

An important object ofthis invention is to provide a device of this character in which the releaseof the tension applied to the rolls by the weight may be accomplished at the upper surface of the rolls and accord ingly at a point where this release is very readily effected- A still further object of the invention is to provide a device of this character which will require no change whatever in the construction of the rolls as now employed and which, in fact, the only changesnecesssary are in the construction of the saddles employed for actually maintaining the rolls in position and through which the tension of the weight is transmitted to the rolls.

These and other objects I attainby the construction shown in the accompanying drawings, wherein for the purpose of illus-v tration is shown a preferred embodiment of my invention and whereln Figure 1 is a sectional view taken through a portion of the spinning machine, showing upper roll and the front and rear saddles,

the eccentric of the front'saddle being shown disconnected from the saddle.

Referring now more particularly to the drawings, the numeral 10 generally designates the bed of the machine from which the lower rolls 11 are supportedin the usual bracket 12. To the rear ends of these brackets are pivoted cap bars 18 which hold the top rolls 14 in place, each roll having at itsends bearings 15 which are received in these cap bars. Centrally the rolls are provided with a reduced portion 16, the purpose of which will presently appear.

Secured to the roll brace 17 which forms a portion of the bed, is an eye bolt 18, in the eye of which is hooked one end of a weight lever 19. .The opposite end of this lever V has in its upper surface a notch 20 receiving a weight hook 21 which extends through the board 23, also forming a portion of the bed, and beneath this board has secured thereto a tensioning weight 2 h Adjacent the first named end, the 16161'19 is provided. in its under surface with anotch 25 with which is engaged one end of-a link 26'eX tending upwardly between the first pair of frolls 11 and 14 andthe second pair thereof.

The numeral 27 designates a. rear saddle having in its under surface a groove 28 receiving and substantially conforming to the curvature of the reduced central portion 16 of the middle roll. Adjacent its rear end this saddlerests upon the reduced portion of the rear roll 14. Above the rolls, the saddle istformed with openings 29 through which oil may be introduced to lubricate the contacting surfaces. The upper surface of the saddle is longitudinally grooved, as indicated at 30. A front saddle 31 is provided having in its under surface, at its forward end, a. notch 32 to receive the reduced portion 16 of the front roll and having formed through its upper surface an oil opening so that lubricant may be supplied at the points of contact. The rearend of this saddle is bifurcated, as at 33, and has pivoted between the arms 34 formed by the bifurcation an eccentric 35 having a lever handle 36 by means of which it may be rotated. The upper surface of the front saddle is provided, immediately rearwardly of the front roll 14, with a notch 37 receiving the upper end of the link 26.

In the use of the device when it is desired to remove any of the rolls 14, this may be accomplished by simply moving the lever handle 36 in the direction of the arrow of Figure 1,'with the result that the rear end of the front saddle is permitted to lower. This lowering of the rear end likewise lowers the link26 bodily, permitting the rear end of the weight lever "19 to drop until it comes into contact with the upper surface of the board 23, at which time the weight will be supported by the board and not by the front saddle. It Will be obvious that the saddles 31 and 27 may now be readily removed to permit removal of the'rolls' 14. After the rolls have been replaced, the tension of the weight is again brought there against by rotating the lever handle 36 until the rear end of the lever 19 has been elevated and the weight is again suspended from the front saddle. In order to assure against accidental displacement of the ec centric, due to vibration to which the machine is subjected in operation, the eccentric 35 has a flat face 38 engaging against the surface of the rear saddle 27 at the base of the groove 30 thereof while the weight is suspended, and between this flat surface and the low point of the eccentric a peak 39 occurs which is spaced from the pivot point 40 of the eccentric a distance greater than this flat face, so that in moving the eccentric through the lever 36 to cause the weight to be suspended from the board '23, it is first necessary that this weight be additionally elevated. V

It will be obvious that the construction hereinbefore set forth is capable of a considerable range of change and modification without materially departing from the spirit of my invention, and I accordingly do not limit myself to such specific structure except as hereinafter claimed.

I claim V 1. In a'spinning machine, the combination with lower rolls, upper rolls resting upon the lower rolls and means for applying tension to the upper rolls to force them against the lower rolls including a pair of saddles, one resting upon the middle and rear upper rolls, the other resting at its front end upon the front upper roll and at its rear end upon the first named saddle, a Weight supported from the front saddle intermediate the front and middle rolls, of means at the rear end of the last named saddle and engaging the first named saddle shiftable to vary the height of therear end of the last named saddle and to permit said weight to lower,

and means other than said front saddle supporting said weight when it has been lowered a predetermined distance.

2. Ina spinning machine, the combination with lower rolls, upper rolls resting upon the lower rolls and means for applying tension to the upper rolls to force them against the lower rolls including a pair of saddles, one'resting upon the middle and rear upper rolls, the other resting upon the front upper roll and having its rear end extended over the first named saddle, a weight supported from the front saddle intermediate the front'and middle rolls, and means other than the front saddle supporting the weight upon a predetermined lowering thereof, of a member rotatably engaged with the rear end of the front saddle and engaging the rear saddle and by its rotation controlling the elevation of the rear end of the front saddle with relation to the rear saddle.

In a spinning machine, the combination with lower rolls, upper rolls resting upon the lower rolls and means for applying tension to the upper rolls to force them against the lower rolls including a pair of saddles, one resting upon the middle and rear upper rolls, the other resting upon the front upper roll and having its rear end we tended over the first named saddle, a weight supported from the front saddle intermediate the front and middle rolls, means other than the front saddle supporting the weight upon a predetermined lowering thereof,of a member rotatably engaged with the rearend of the front saddle and engaging the rear saddle and by its rotation controlling the elevationof the rear end of the front saddle with relation to the rear saddle, comprising an eccentric pivoted to the rear end of the front saddle and engaging the upper surface of the rear saddle, and a lever'secured to the eccentric whereby it maybe rotated. I

4. In a spinning machine, the combina tion with lower rolls, upper rolls resting upon the lower-rolls. and means for applying tension to the upper rolls. to force them against the lower rolls including a pair of saddles, one resting upon the middle and rear upper rolls, the other resting upon the front upper roll and having its rearend extended over the first named saddle, a weight supported from the front saddle .interme diate the front and middle rolls, means other than the front saddle supporting the weight upon a predetermined lowering thereof, of'a member rotatably engaged with the rear end of the front saddle and engagingthe rear saddle and by its rotation controlling 'the elevation of the rear end of the front'saddle with relation to the rear saddle, comprising an eccentric pivoted to the rear end of the front saddle and engaging the upper surface of the rear saddle, a lever secured to the eccentric whereby it may be rotated, said eccentric having a flattened section engaging with the rear saddle when the saddles are in operative position and the weight is suspended from the front saddle, and a low point located more nearly the pivot than such flattened surface and intermediate such low point and flattened surface being provided with a peak spaced from the pivot a distance greater than the distance between such flattened surface and the pivot.

5. In a spinning machine, the combination with lower rolls, upper rolls resting upon the lower rolls and means for applying tension to the upper rolls to force them against the lower rolls including a pair of saddles, one resting upon the middle and rear upper rolls, the other resting upon the front upper roll and having its'rear end extended over the first named saddle, a weight supported from the front saddle intermediate the front and middle rolls, and means other than the front saddle supporting the weight upon a L predetermined lowering thereof, of a member rotatably engaged with the rear end of the front saddle and engaging the rear saddle and by its rotation controlling the elevation of the rear end of the front saddle with relation to the rear saddle, said member having two positions in one of which the rear end of the front saddle most nearly approaches the rear saddle and the weight is supported by said means and in the other of which the rear end of the front saddle is remote from but supported by the rear saddle and the weight is supported from the front saddle.

6. In a spinning machine, the combination with lower rolls, upper rolls resting upon the lower rolls and means for applying tension to the upper rolls to force them against the lower rolls including a pair of saddles, one resting upon the middle and rear upper rolls, the other resting upon the front upper roll and having its rear end extended over the first named saddle, a weight supported from the front saddle intermediate the front and middle rolls, and means other than the front saddle supporting the weight upon a pretedermined lowering thereof, of a member rotatably engaged with the rear end of the front saddle and engaging the rear saddle and by its rotation controlling the elevation of the rear end of the front saddle with relation to the rear saddle, said member having two positions in one of which the rear end of the front saddle most nearly approaches the rear saddle and the weight is supported by said means and in the other of which, the rear end of the front saddle is remote from but supported by the rear saddle and the weight is supported from the front saddle, and having a part engaging the rear saddle as it is moved from one to the other of said positions whereby the rear end of the front saddle is elevated above the rear saddle a distance greater than its elevation while in the last named position whereby said weight oper: ates to prevent shifting of said member from one to the other of said positions due to vibration of the machine.

In testimony whereof I hereunto affix my signature.

ROBERT EDli [ON HAYNES. 

